1. 11 Oct, 2006 1 commit
  2. 30 Jun, 2006 1 commit
  3. 27 Mar, 2006 1 commit
    • Dave Hansen's avatar
      [PATCH] unify PFN_* macros · 22a9835c
      Dave Hansen authored
      Just about every architecture defines some macros to do operations on pfns.
       They're all virtually identical.  This patch consolidates all of them.
      One minor glitch is that at least i386 uses them in a very skeletal header
      file.  To keep away from #include dependency hell, I stuck the new
      definitions in a new, isolated header.
      Of all of the implementations, sh64 is the only one that varied by a bit.
      It used some masks to ensure that any sign-extension got ripped away before
      the arithmetic is done.  This has been posted to that sh64 maintainers and
      the development list.
      Compiles on x86, x86_64, ia64 and ppc64.
      Signed-off-by: default avatarDave Hansen <haveblue@us.ibm.com>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
  4. 30 Oct, 2005 1 commit
    • Dave Hansen's avatar
      [PATCH] memory hotplug locking: node_size_lock · 208d54e5
      Dave Hansen authored
      pgdat->node_size_lock is basically only neeeded in one place in the normal
      code: show_mem(), which is the arch-specific sysrq-m printing function.
      Strictly speaking, the architectures not doing memory hotplug do no need this
      locking in show_mem().  However, they are all included for completeness.  This
      should also make any future consolidation of all of the implementations a
      little more straightforward.
      This lock is also held in the sparsemem code during a memory removal, as
      sections are invalidated.  This is the place there pfn_valid() is made false
      for a memory area that's being removed.  The lock is only required when doing
      pfn_valid() operations on memory which the user does not already have a
      reference on the page, such as in show_mem().
      Signed-off-by: default avatarDave Hansen <haveblue@us.ibm.com>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
  5. 23 Jun, 2005 1 commit
    • Dave Hansen's avatar
      [PATCH] remove non-DISCONTIG use of pgdat->node_mem_map · 408fde81
      Dave Hansen authored
      This patch effectively eliminates direct use of pgdat->node_mem_map outside
      of the DISCONTIG code.  On a flat memory system, these fields aren't
      currently used, neither are they on a sparsemem system.
      There was also a node_mem_map(nid) macro on many architectures.  Its use
      along with the use of ->node_mem_map itself was not consistent.  It has
      been removed in favor of two new, more explicit, arch-independent macros:
      	pgdat_page_nr(pgdat, pagenr)
      	nid_page_nr(nid, pagenr)
      I called them "pgdat" and "nid" because we overload the term "node" to mean
      "NUMA node", "DISCONTIG node" or "pg_data_t" in very confusing ways.  I
      believe the newer names are much clearer.
      These macros can be overridden in the sparsemem case with a theoretically
      slower operation using node_start_pfn and pfn_to_page(), instead.  We could
      make this the only behavior if people want, but I don't want to change too
      much at once.  One thing at a time.
      This patch removes more code than it adds.
      Compile tested on alpha, alpha discontig, arm, arm-discontig, i386, i386
      generic, NUMAQ, Summit, ppc64, ppc64 discontig, and x86_64.  Full list
      here: http://sr71.net/patches/2.6.12/2.6.12-rc1-mhp2/configs/
      Boot tested on NUMAQ, x86 SMP and ppc64 power4/5 LPARs.
      Signed-off-by: default avatarDave Hansen <haveblue@us.ibm.com>
      Signed-off-by: default avatarMartin J. Bligh <mbligh@aracnet.com>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
  6. 16 Apr, 2005 1 commit
    • Linus Torvalds's avatar
      Linux-2.6.12-rc2 · 1da177e4
      Linus Torvalds authored
      Initial git repository build. I'm not bothering with the full history,
      even though we have it. We can create a separate "historical" git
      archive of that later if we want to, and in the meantime it's about
      3.2GB when imported into git - space that would just make the early
      git days unnecessarily complicated, when we don't have a lot of good
      infrastructure for it.
      Let it rip!